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sBWNG MACHINE.

N0 288,765. Patented Non 20, 1888.

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UNrrsn STATES PATENT Ormes.

JOSEPH BOND, JR., OFIIHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE HALF TOCHARLES M. SVAIN, OF SAME PLAGE. l

SEWING-MACHENE.

SPECI'IT'IELA'IDQN forming part of Letters Patent No.

Application filed February 16, 1883.

To @ZZ whom t iii/ay concern:

Be it known that I, J osnrir BOND, Jr., a citizen of the United States,and a resident of Philadelphia, "Pennsylvania, have invented certainImprovements in Sewing-Machines, of which the following is aspecification.

My invention 'relates to certain improvements in the sewing-machine forwhich Letters Patent of the United States No. 245,771 were granted to myassignees on the 16th day of August, ISSI, the `present improvementsrelating, first, to the device employed for transmitting motion from theupper to the lower shaft of the machine; secondly, to the take-updevices, and, thirdly, to the construction of the spool-case andspool-case holder.

In the accompanying drawings, Figure l, Sheet 1, is a longitudinalsection of the machine with my improvements; Fig. 2, a transversesection on the line l 2, Fig. l; Figs. 3 to 6, inclusive, Sheet 2,diagrams illustrating the improved take-up mechanism; Figs. 7 and 8,views of the improved spool-case, and Figs. 9, 10, and 11 views showingthe relation of the spoolcase to the spool-case holder.

H is the hed of the machine; I I', the stationary arm of the same; J,the driving-shaft; K, the lower shaft for operating the feed-motion andloop-catcher b,- B, the needle-bar, and S the presser-bar, all of theseparts being constructed and operating in the same manner as in themachine shown and described in the above-named patent.

Crank-pins on the shafts J and K are connected by a rod,| D, guided in agrooved plate, L, capable of moving transversely; but instead oflsecuring this plate to a rod adapted to bearings in tubular studs on theopposite sides of the hoilow post I of the arm, as in the patentedmachine, I form on the back of the plate L a rib, j', which ts snugly,but so as to slide freely, in a groove, g', formed in a transverse bar,g, secured within said hollow post I', this form of guide being simplerand easier to fit up than the rod and tubes formerly used.

The devices for taking up the slack of the needle-thread, after theformation of the loop, arethe saine in principle as those formerlyemployed, and comprise the rotating disk L', with hook a, thethread-retainer o, and the eyes d, d', and d2; but in addition to thesedevices I 288,765, dated November 20, 18E-3.

(No model.)

now provide the disk L with a lug, m, which acts on that portion of thethread between the eyes d and d. This lug commences to act before thehook c has iinished taking up the thread, and serves to expedite thisoperation* that is to say, it insures the rapid taking up of the loop ofneedle-thread as soon as the latter has passed from the rear of thespoolcase. The lug m also serves to impart a certain degree of tensionto the thread as the latter is drawn downward, owing to the action ofthe hook b in forming the next loop, the thread being thereby preventedfrom slipping off of the hook, and the formation of a perfect loop beinginsured. (See Figs. 3 to 6.)

The spool-case M which I now use is made of a single block, instead ofbeing in the form of a two-part shell, as before, and in this block isformed aslot, h, for the reception of a spool, f'

N, which can turn freely on a pin, n, adapted to openings in the case,the head of this pin being grooved, so that it can be readily caughthold of and the pin withdrawn when it becomes necessary to remove thespool.

rIension is imparted to the thread by passing the same between the endof the spool-case and one of the heads of the spool, as before, a plate,p, bearing against the opposite head of the spool, and this plate beingacted upon by a spring, s, under control of a screw, s', as shown inFig. 8.

The spool-case holder comprises two plates, l? and P', the latter beingmovable, so as to permit of the insertion or removal of the spoolcase,which rests in an inclined position, as shown in Fig. ll. Each plate hasin front a wing, w, and at the rear a wing, w, and the spool-case isconfined longitudinally between these Wings, the distance between which,however,is slightly greater than the length of spoolcase containedbetween them, so that a slight longitudinal movement of the spool-casein the holder is permitted.

Before the formation of the loop the spoolcase rests in contact with thewings w, as shown in Fig. 9; but as soon as the loop is formed over thenose of the spool-case, the tension on the thread causes the said caseto move backward in the holder until its rear end strikes the Wings x, aclear passage being thus formed for the thread between the front end ofthe ICO ` 1o order to permit the threading up of the spoolcase withontthe necessity of passing the thread through these openings, I form inthe casing three slots, z, z', and z2, each extending from one oftheopenings to the edge ofthe case, so I 5 that the thread can loe readilyslipped into the openings.

I claim as my invention- 1. The combination of the shafts J and K, theircrank-pins, and the connecting-rod D, 2o with the grooved guide L,having a rib, f, and

the bar g, having a "groove, g', for the reception of said rib, as setforth. 2. The combination of the take-np device comprising thread-guidesand a rotating hook, a, with the lug or projection m, acting in con- 2 5nection with said take-up hook, as set forth. 3. rIhe combination of thespool-case, the spool N, and the pivot-pin a,with the tension devicecomprising the plate p, spring s, and set-screw s', as set forth. 4. Thecombination of the spoolcase M with the holder having wings w and x,located near the opposite ends ofthe spoolcase, and adapted to hold thesame in an inclined position, but permitting aslight longitudinal play,whereby 35 the loop is drawn over the spool-case without contact withthe wings, as set forth.

5. The spool-case having openings y, y', and y2 and slots z, z', and z2,as set forth.

In testimony whereof Ihave signed my name 4o to this specification inthe presence of two subscribing witnesses.

JOSEPH BOND, JR.

Vitnesses:

HARRY DRURY, HARRY SMITH.

